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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Qualifier:
according to guideline
Guideline:
other: NF T 20-048 AFNOR (static method)
Version / remarks:
Sept. 85
GLP compliance:
no
Type of method:
static method
Specific details on test material used for the study:
- Name of test material (as cited in study report): Composite sample No. 8 Pitch (Coal tar)
Key result
Temp.:
20 °C
Vapour pressure:
ca. 0 Pa
Remarks on result:
other: on composite sample: extrapolated from the Vp curve from 294 - 344 °C
Temp.:
25 °C
Vapour pressure:
ca. 0 Pa
Remarks on result:
other: on composite sample: extrapolated from the Vp curve from 294 - 344 °C
Temp.:
50 °C
Vapour pressure:
ca. 0 Pa
Remarks on result:
other: on composite sample: extrapolated from the Vp curve from 294 - 344 °C
Temp.:
294 °C
Vapour pressure:
ca. 2 900 Pa
Remarks on result:
other: on composite sample: measured; calculated from Vp curve: 2,418 pa
Conclusions:
The vapour pressure of pitch, coal tar, high-temp. (CCSG composite sample 08) (CTPht) at ambient temperatures is below 5x10E-5 Pa.

Description of key information

The estimated vapour pressure of pitch, coal tar, high-temp. is approx. 0.000006 Pa at 293 K (20 °C), and approx. 0.000012 Pa at 298 K (25 °C), extrapolated from the Vp curve at high temperature.

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
20 °C

Additional information